I know how to burn iso files, I have done this many times.
However with the Kon-Boot CD-konboot-v1.1-2in1.iso
whenever I try to burn, and I have used several different burners, in reading questions on this imgburn seems to be the best and I have that but I get this error :

"CD-konboot-v1.1-2in1
you don't have permission to open this file
please contact the file owner or administrator to obtain permission"

the thing is I am not trying to open it I am only trying to burn it to disc.
Any ideas what I am doing wrong?